1# $Id: meta.autodep.mk,v 1.50 2018/06/08 01:25:31 sjg Exp $ 2 3# 4# @(#) Copyright (c) 2010, Simon J. Gerraty 5# 6# This file is provided in the hope that it will 7# be of use. There is absolutely NO WARRANTY. 8# Permission to copy, redistribute or otherwise 9# use this file is hereby granted provided that 10# the above copyright notice and this notice are 11# left intact. 12# 13# Please send copies of changes and bug-fixes to: 14# sjg@crufty.net 15# 16 17_this ?= ${.PARSEFILE} 18.if !target(__${_this}__) 19__${_this}__: .NOTMAIN 20 21.-include <local.autodep.mk> 22 23PICO?= .pico 24 25.if defined(SRCS) 26# it would be nice to be able to query .SUFFIXES 27OBJ_EXTENSIONS+= .o .po .lo ${PICO} 28 29# explicit dependencies help short-circuit .SUFFIX searches 30SRCS_DEP_FILTER+= N*.[hly] 31.for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}} 32.for e in ${OBJ_EXTENSIONS:O:u} 33.if !target(${s:T:R}$e) 34${s:T:R}$e: $s 35.endif 36.endfor 37.endfor 38.endif 39 40.if make(gendirdeps) 41# you are supposed to know what you are doing! 42UPDATE_DEPENDFILE = yes 43.elif !empty(.TARGETS) && !make(all) 44# do not update the *depend* files 45# unless we are building the entire directory or the default target. 46# NO means don't update .depend - or Makefile.depend* 47# no means update .depend but not Makefile.depend* 48UPDATE_DEPENDFILE = NO 49.elif ${.MAKEFLAGS:M-k} != "" 50# it is a bad idea to update anything 51UPDATE_DEPENDFILE = NO 52.endif 53 54_CURDIR ?= ${.CURDIR} 55_OBJDIR ?= ${.OBJDIR} 56_OBJTOP ?= ${OBJTOP} 57_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 58_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 59 60.if ${.MAKE.LEVEL} > 0 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes" 61# do not allow auto update if we ever built this dir without filemon 62NO_FILEMON_COOKIE = .nofilemon 63CLEANFILES += ${NO_FILEMON_COOKIE} 64.if ${.MAKE.MODE:Uno:Mnofilemon} != "" 65UPDATE_DEPENDFILE = NO 66all: ${NO_FILEMON_COOKIE} 67${NO_FILEMON_COOKIE}: .NOMETA 68 @echo UPDATE_DEPENDFILE=NO > ${.TARGET} 69.elif exists(${NO_FILEMON_COOKIE}) 70UPDATE_DEPENDFILE = NO 71.warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO 72.endif 73.endif 74 75.if ${.MAKE.LEVEL} == 0 76.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 77UPDATE_DEPENDFILE = NO 78.endif 79.endif 80.if !exists(${_DEPENDFILE}) 81_bootstrap_dirdeps = yes 82.endif 83_bootstrap_dirdeps ?= no 84UPDATE_DEPENDFILE ?= yes 85 86.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 87.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 88.endif 89 90.if !empty(XMAKE_META_FILE) 91.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 92# we cannot get accurate dependencies from an update build 93UPDATE_DEPENDFILE = NO 94.else 95META_XTRAS += ${XMAKE_META_FILE} 96.endif 97.endif 98 99.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 100# if it isn't supposed to be touched by us the Makefile should have 101# UPDATE_DEPENDFILE = no 102WANT_UPDATE_DEPENDFILE ?= yes 103.endif 104 105.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 106.if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != "" 107UPDATE_DEPENDFILE = no 108.endif 109 110.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 111.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 112.endif 113 114.if ${UPDATE_DEPENDFILE:tl} == "yes" 115# sometimes we want .meta files generated to aid debugging/error detection 116# but do not want to consider them for dependencies 117# for example the result of running configure 118# just make sure this is not empty 119META_FILE_FILTER ?= N.meta 120# never consider these 121META_FILE_FILTER += Ndirdeps.cache* 122 123.if !empty(DPADD) 124# if we have any non-libs in DPADD, 125# they probably need to be paid attention to 126.if !empty(DPLIBS) 127FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 128.else 129_nonlibs := ${DPADD:T:Nlib*:N*include} 130.if !empty(_nonlibs) 131FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 132.endif 133.endif 134.endif 135 136.if !make(gendirdeps) 137.END: gendirdeps 138.endif 139 140# if we don't have OBJS, then .depend isn't useful 141.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 142# some makefiles and/or targets contain 143# circular dependencies if you dig too deep 144# (as meta mode is apt to do) 145# so we provide a means of suppressing them. 146# the input to the loop below is target: dependency 147# with just one dependency per line. 148# Also some targets are not really local, or use random names. 149# Use local.autodep.mk to provide local additions! 150SUPPRESS_DEPEND += \ 151 ${SB:S,/,_,g}* \ 152 *:y.tab.c \ 153 *.c:*.c \ 154 *.h:*.h 155 156.NOPATH: .depend 157# we use ${.MAKE.META.CREATED} to trigger an update but 158# we process using ${.MAKE.META.FILES} 159# the double $$ defers initial evaluation 160# if necessary, we fake .po dependencies, just so the result 161# in Makefile.depend* is stable 162# The current objdir may be referred to in various ways 163OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 164_depend = .depend 165# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 166# we actually only care about the .SUFFIXES of files that might be 167# generated by tools like yacc. 168DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 169.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 170 @echo "Updating $@: ${.OODATE:T:[1..8]}" 171 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 172 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 173 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 174 sort -u | \ 175 while read t d; do \ 176 case "$$d:" in $$t) continue;; esac; \ 177 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 178 echo $$t $$d; \ 179 done > $@.${.MAKE.PID} 180 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 181 *.po.*) mv $@.${.MAKE.PID} $@;; \ 182 *) { cat $@.${.MAKE.PID}; \ 183 sed 's,\${PICO}:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 184 rm -f $@.${.MAKE.PID};; \ 185 esac 186.else 187# make sure this exists 188.depend: 189# do _not_ assume that .depend is in any fit state for us to use 190CAT_DEPEND = /dev/null 191.if ${.MAKE.LEVEL} > 0 192.export CAT_DEPEND 193.endif 194_depend = 195.endif 196 197.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 198.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 199.endif 200 201.if ${UPDATE_DEPENDFILE} == "yes" 202gendirdeps: ${_DEPENDFILE} 203.endif 204 205.if !target(${_DEPENDFILE}) 206.if ${_bootstrap_dirdeps} == "yes" 207# We are boot-strapping a new directory 208# Use DPADD to seed DIRDEPS 209.if !empty(DPADD) 210# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 211# needs to be qualified in DIRDEPS 212# The pseudo machine "host" is used for HOST_TARGET 213DIRDEPS += \ 214 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 215 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 216 217.endif 218.endif 219 220_gendirdeps_mutex = 221.if defined(NEED_GENDIRDEPS_MUTEX) 222# If a src dir gets built with multiple object dirs, 223# we need a mutex. Obviously, this is best avoided. 224# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 225# you either need to mutex, or ensure only one machine builds at a time! 226# lockf is an example of a suitable tool 227LOCKF ?= /usr/bin/lockf 228.if exists(${LOCKF}) 229GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 230.endif 231.if empty(GENDIRDEPS_MUTEXER) 232.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 233.else 234_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 235.endif 236.endif 237 238# If we have META_XTRAS we most likely did not create them 239# but we need to behave as if we did. 240# Avoid adding glob patterns to .MAKE.META.CREATED though. 241.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 242 243.if make(gendirdeps) 244META_FILES = *.meta 245.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 246META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 247.else 248# if we have 1000's of .o.meta, ${PICO}.meta etc we need only look at one set 249# it is left as an exercise for the reader to work out what this does 250META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 251 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 252.endif 253 254.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 255.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 256.endif 257 258.if ${.MAKE.LEVEL} > 0 259.if ${UPDATE_DEPENDFILE} == "yes" 260.-include <${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.options> 261.endif 262.if !empty(GENDIRDEPS_FILTER) 263.export GENDIRDEPS_FILTER 264.endif 265# export to avoid blowing command line limit 266META_FILES := ${META_XTRAS:U:O:u} ${META_FILES:U:T:O:u:${META_FILE_FILTER:ts:}} 267.export META_FILES 268.endif 269 270# we might have .../ in MAKESYSPATH 271_makesyspath:= ${_PARSEDIR} 272${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 273 @echo Checking $@: ${.OODATE:T:[1..8]} 274 @(cd . && ${GENDIRDEPS_ENV} \ 275 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 276 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 277 MAKESYSPATH=${_makesyspath} \ 278 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE}) 279 @test -s $@ && touch $@; : 280.endif 281 282.endif 283.endif 284 285.if ${_bootstrap_dirdeps} == "yes" 286.if ${BUILD_AT_LEVEL0:Uno} == "no" 287DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 288.endif 289# make sure this is included at least once 290.include <dirdeps.mk> 291.else 292${_DEPENDFILE}: .PRECIOUS 293.endif 294 295CLEANFILES += *.meta filemon.* *.db 296 297# these make it easy to gather some stats 298now_utc = ${%s:L:gmtime} 299start_utc := ${now_utc} 300 301meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 302 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 303 304#.END: _reldir_finish 305.if target(gendirdeps) 306_reldir_finish: gendirdeps 307.endif 308_reldir_finish: .NOMETA 309 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 310 311#.ERROR: _reldir_failed 312_reldir_failed: .NOMETA 313 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 314 315.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 316.END: _reldir_finish 317.ERROR: _reldir_failed 318.endif 319 320.endif 321